Great help! Thank you gentlemen!
Something Ron said at the end of his post struck a note: We bought this motorhome from a some parents of friends of ours in 2010. The year before - maybe 2008 - the brakes went out on them in the Rockies. They took it to a brake shop in Estes Park and spent all kinds of money to get everything fixed. The PO discussed all of this with me and also stated that ever since then the brakes had been mushy/spongy. He had taken it to several local places - some thought the shop had put in the wrong bore MC (see my previous threads on this...). But, now I'm thinking they just did it the way Ron described - didn't take the time to do it properly - and everyone since (myself included) has just figured they were adjusted properly...
